We tell how to choose the correct screen sizes depending on the distance to the viewer, the viewing angle and permission.
If the picture on the new TV is blown or well visible, the case can not be completely in the device malfunction. Most likely, an error is made in selecting screen sizes. Talk about how to calculate the TV diagonal to enjoy viewing.
What to take into account when calculating TV diagonal
Why the parameter mattersFor what criteria to count on
- Distance to viewer
- View angle
- Monitor resolution
Why diagonal matters when choosing
Modern TVs, except for the appearance and functional, differ from their predecessors by the fact that they can be configured to themselves, and for this it is important to competently select the sizes.
One of the main technical characteristics of the device is a diagonal value. This refers to the distance from one corner of the screen to another, not adjacent an angle. It is important to consider that the screen is measured. It is inserted into the housing, so the overall dimensions of the equipment will be, respectively, more. Some confuse two concepts and, defining what to select the TV diagonal, focus on the screen size as the dimensions of the device. If it is supposed to install the equipment in a niche or furniture, you can do and the device will not get there.
In the technical characteristics of the equipment, this parameter is indicated in inches. To get the usual centimeters, it is enough to multiply this number by 2.54.
For what criteria to count on
1. Select the diagonal of the TV depending on the distance to the screen
You need to start the model selection from determining the installation location, it will be clear from which distance the device will be visible. After you need to calculate the remoteness from the audience.According to the outdated method of calculation, the diagonal was multiplied by the coefficient 3 or 4, it was relevant for equipment with a kinescope, then it was necessary to take into account the degree of radiation of the device, its permission and image format.
Modern TVs work on other principles, they are completely safe, possess high definition. The new scheme takes into account the parameters of the built-in matrix equipment.
Recommended calculation ratio for modern TV:
- For HD Ready - 2.3.
- For HD FUL - 1.56.
- For ultra HD - 0.7.
There is another rule. The device is more, the more should be the distance to the viewer, and the volume of the room also must match it. So, in a spacious living room, you should not install a small monitor. Otherwise, you will have to peer into it, trying to consider the picture. Fair and reverse: Choose a large device in a small room too inappropriate. No matter how it would not want.
Calculation scheme depending on the room area
- For rooms at 12 square meters. M and less select 20-inch screens.
- For premises of 12-18 square meters. m 5-37-inch devices are suitable.
- For rooms of 20 square meters. M and more pick equipment from 40 inches.
| Diagonal, inches | Distance from viewer to screen, meters |
|---|---|
| 17. | one |
| 25. | 2. |
| 32. | 2.5 |
| 37. | 2.7 |
| 40. | 3. |
| fifty | four |
| 65. | 4.5 |
| 70. | five |
| 80. | 6. |
2. View angle
This moment is usually not focused. However, the competent ratio of the viewing angle, resolution and size of the device makes it possible to obtain the effect of presence. So, to fully enjoy your favorite movie or transfer. The effect of presence affects peripheral vision, which is connected only in certain angles of the review. Therefore, it is so important to position the monitor correctly.
Recommendations for calculation
- If the viewing angle is 20 °, the viewer must be removed at a distance equal to the labeling in inches multiplied by 2.5.
- For an angle of 30 °, the coefficient of 1.6 is selected.
- For an angle of 40 ° coefficient - 1.2.
Perhaps the equipment that is placed on the stand or table is difficult to choose the viewing angle. But for panels fixing on the wall, it is much easier to choose it. Adjusting the consolidation height, you can choose the optimal solution.
3. TV resolution
Image quality from different TV is different. It depends on the permission. It is known that the picture on the screen is made up of small points, they are called pixels. Resolution is the number of such points on the display. Than them are more, the clearer image. It can be viewed, even sitting close to the TV panel. Conversely, if there are little pixels, you need to move away away. Otherwise, the picture will be unpleasant to "sail."In two models identical in size can be different. Accordingly, it is also necessary to place them in the room too.
Permissions of the most popular instrument formats
- HD Ready - 1366x720
- HD FUL - 1920x1080
- Ultra HD - from 3840x2160.
Thus, given the image quality, you can adjust the distance from the eyes to TV. The higher the resolution, the one may be less. The values recommended above can be changed taking into account the characteristics of the selected model.
To the recommendations, how to choose a TV diagonally, it is necessary to add that there is a small difference between liquid crystal and plasma displays. The last pixel size is a little more. It turns out that with the same sizes and resolution, the image will be varied. Therefore, it makes sense to place plasma a little further than a liquid crystal model similar in all technical parameters.